Of four local southern herbs in two lands of Wanning in Hainan,the contents of Cd,Hg of the four local southern herbs of Hainan meets the green trade standard; The contents of Cu of Myristica fragrans Houtt. ,Eugenia cartioghyllata Thunb.

• 据国家商务部2001年颁发的《药用植物及制剂进出口绿色行业标准》药材重金属限量标准,对于采自海南万宁两产区该4种南药,其镉、汞含量符合绿色行业标准,同时肉豆蔻、丁香及金线莲的铜含量符合绿色行业标准,肉豆蔻、丁香及高良姜的砷含量也符合绿色行业标准;